Vertebral implant, device for vertebral attachment of the implant and instrumentation for implantation thereof

摘要

The present invention relates to a vertebral implant, in particular for corpectomy, to a device for attaching a vertebral implant and to implantation instrumentation, the implant including at least one first body (2) and at least one second body (3) each having at least one face having shapes and dimensions mating those of at least one face of another body (3, 2) and forming mutual fitting means, in order to allow assembling of said bodies (2, 3) by sliding along a sliding axis and, on the other hand, at least one locking means (4) retained in at least one of the bodies (2, 3) and at least one abutment portion of which is laid out for passing from a so-called open position, allowing sliding for the assembling of said bodies (2, 3), to a so-called closed position, locking said bodies (2, 3) assembled together by the contact between at least said abutment portion and at least one abutment (42, 43) of at least one of said bodies (2, 3), said abutment (42, 43) being oriented not parallel to the sliding axis and said abutment portion passing from the open position to the closed position elastically by flexure or torsion.

主权项

1. A vertebral, in particular corpectomy, implant intended to be inserted into the rachis according to at least one approach route, for replacing a vertebral segment, the implant extending along a vertical axis, between upper and lower surfaces of the implant each intended to be placed in contact with a respectively upper and lower structure, of said vertebral segment, the implant being characterized in that it includes at least one first body and at least one second body each having at least mutual fitting means in order to allow assembling of said bodies by sliding along a sliding axis and on the other hand, at least one locking means retained in or on at least one of the bodies and at least one abutment portion of which is laid out for passing from a so-called open position, allowing sliding for the assembling of said bodies, to a so-called closed position locking said bodies assembled together by the contact between at least said abutment portion and at least one abutment of at least one of said bodies, said abutment being oriented not parallel to the sliding axis and said abutment portion passing from the open position to the closed position elastically by flexure or torsion, by means of at least one flexible portion of the locking means allowing withdrawal of said abutment portion of the locking means in an open position during the sliding of the bodies on the one hand and elastic return of said abutment portion into the closed position when it is found facing said abutment of said body on the other hand.